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Even if i typed wrong- i also uploded it to the calculator. The only thing that happens is that when i type at the last line, 8, the screen gets scrolled and the stuff that was on the screen gets hard to read( there are few horizontal pixel lines that are off). My guess is that CurCol and CurRow have diffrent adresses in ti 84, but its just a guess.

I just tried it on my actual calc and it worked just fine :/ I know that I have a few Apps that overwrite the interrupt, so maybe that is the problem? I used the exact code you gave (remember not to use the BB6D part). Also, this is a TI-84+ and a TI-84+SE

Okay then. I dont know why but it worked on my friends calc. I think im gonna get all the 5 batteries out and try it again.

By the way, im officialy done with the tutorial. My next step is to make a multiplayer starwars game. Im going to start with it after building my CPU for my scool project, which will be quite a while .

I wanted to thank ThunderBolt and asdf for very helpfull hints and answers to my questions , i wouldnt make it without you. Learning z80 asm was both a real adventure and a very nice intruduction to computation. I hope it will help me with my next challenge, x86. :)

Congrats! And anyways, i think TSRs are of a pretty limited use, unless you're trying to do a fake mem reset or password program They can be fun to play around with, though. Btw, do you have any other plans/projects for the TI calcs?

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